(ə-klī'mĭt, ăk'lə-māt') tr. & intr.v., -mat·ed, -mat·ing, -mates. To accustom or become accustomed to a new environment or situation; adapt. See synonyms at harden.
[French acclimater : a-, to (from Latin ad-; see ad-) + climat, climate (from Old French; see climate).]